CONDUCTING  POWEE  OF  THE  METALS. 
387 
Sn  Pb*  . 
Mean  of 
conducting  power. 
. . 9-20 
Mean  of 
temperature. 
oC. 
21-4 
Calculated 
conducting  power 
9-09 
Sn,Pb  . 
. . 10-55 
22-0 
10-31 
Sn  Pb,  . 
. . 8-26 
22-6 
8-22 
ZnSnf  . 
. . 17-43 
22-0 
17-13 
ZnCd+  . 
. . 23-78 
20-8 
24-04 
The  above  values  are  the  means  of  at  least  two  agreeing  results  determined  after  the 
before-mentioned  method,  the  metals  being  of  course  chemically  pure. 
With  bismuth  and  antimony  the  same  law  does  not  appear  to  hold  good ; and  how 
far  with  other  metals  this  may  be  the  case,  I intend,  as  soon  as  I have  procured  a fresh 
supply  of  pure  metals,  to  investigate  and  make  known. 
* If  the  equivalent  of  Sn  =58’0  and  Pb  =103'7.  t If  equivalent  of  Zn  =32'6. 
t This  aUoy  was  prepared  by  Mr.  B.  Jegel,  who  took  the  equivalent  of  Zn  =32'53,  and  Cd  =55-74. 
